Intangibles

9 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

INTANGIBLES

The change in the carrying amount of goodwill by segment for the nine months ended September 30, 2019 is as follows:



In millions	Freight Segment			Transit Segment			Total
Balance at December 31, 2018	$	713.4		$	1,683.1		$	2,396.5
Additions	5,806.2			16.0			5,822.2
Foreign currency impact	(45.4		)	(70.1		)	(115.5		)
Balance at September 30, 2019	$	6,474.2		$	1,629.0		$	8,103.2

As of September 30, 2019 and December 31, 2018, the Company’s trade names had a net carrying amount of $614.5 million and $582.8 million, respectively. The Company believes these intangibles have indefinite lives, with the exception of the GE Transportation trade name, to which the Company has assigned a useful life of 5 years.

Intangible assets of the Company, other than goodwill and trade names, consist of the following:



In millions	September 30, 2019		December 31, 2018
Intellectual property, patents, and other intangibles, net of accumulated
amortization of $100.2 and $40.1	$	1,162.0	$	13.3
Backlog, net of accumulated amortization of $87.6 and $2.0	1,396.6		2.0
Customer relationships, net of accumulated amortization
of $195.2 and $158.5	1,033.9		531.8
Total	$	3,592.5	$	547.1

The weighted average remaining useful life of backlog, intellectual property, customer relationships and other intangibles were 14 years, 10 years, 18 years and 13 years, respectively. Amortization expense for intangible assets was $79.5 million and $172.9 million for the three and nine months ended September 30, 2019, and $9.9 million and $30.1 million for the three and nine months ended September 30, 2018, respectively.

Amortization expense for the five succeeding years is estimated to be as follows:



In millions
Remainder of 2019	$	72.1
2020	285.1
2021	284.1
2022	283.7
2023	283.2